print an error and exit if python-apt is not installed for apt-mark,

thanks Carl Chenet! (Closes: #521284)

1 files changed, 4 insertions, 3 deletions

diff --git a/cmdline/apt-mark b/cmdline/apt-mark
index c44ce7038..3a818a3db 100755
--- a/cmdline/apt-mark
+++ b/cmdline/apt-mark
@@ -2,13 +2,14 @@
 
 from optparse import OptionParser
 
+import sys
+import os.path
+    
 try:
     import apt_pkg
 except ImportError:
     print "Error importing apt_pkg, is python-apt installed?"
-    
-import sys
-import os.path
+    sys.exit(1)
     
 actions = { "markauto" : 1,
             "unmarkauto": 0